Wilson, K. S., Wauters, J., Valentine, I., McNeilly, A., Girling, S., Li, R., Li, D., Zhang, H., Rae, M. T., Howie, F., Andrew, R., & Duncan, W. C. (2019). Urinary estrogens as a non-invasive biomarker of viable pregnancy in the giant panda (Ailuropoda melanoleuca). Scientific Reports, 9(1), Article 12772. https://doi.org/10.1038/s41598-019-49288-6